Devices › Prosthesis, hip, semi-constrained, metal/polymer, porous uncemented
Device brand name · Pinnacle hip system hip poly acetabular liners
Altrx +4 Neut 36idx54od: medical device reports filed with FDA
426 reports name it, 2009–2026. Manufacturer given most often on reports: Depuy Orthopaedics US. Product code LPH.
- 426
- device reports naming the brand
- 0% of all MAUDE reports · about 24 a year
- 15
- reports, 12 months to August 2026
- 21 in the 12 months before
- 0.9%
- classified as malfunction
- 7.5% across the product code
- 0%
- classified as death, as reported
- 0 reports · not verified by FDA
FDA's MAUDE database holds 426 reports that name the brand "Altrx +4 Neut 36idx54od" (pinnacle hip system hip poly acetabular liners), received between February 2009 and May 2026; the manufacturer given most often on reports is Depuy Orthopaedics US. Spellings of one product vary from report to report.
15 reports arrived in the 12 months to August 2026, down 29% from 21 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are injury (99.1%) and malfunction (0.9%); across all prosthesis, hip, semi-constrained, metal/polymer, porous uncemented reports (product code LPH) death is recorded in 0.2% and malfunction in 7.5%. Event type is the reporter's classification of the report, not a verified outcome.
The device problems coded most often are device dislodged or dislocated (40.1%), insufficient device problem information (23.7%) and noise, audible (2.1%). The patient problems coded most often are joint dislocation, pain and joint laxity. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."
Reports by month, five years
Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.
By year received
Event type and report source
Event type, as classified on the report
Who filed the report
Grey bar: all 90,251 reports carrying product code LPH. Event type is the filer's classification and is not verified by FDA.
Device problems coded
| Device problem (FDA code) | Reports | Share | Share across product code |
|---|---|---|---|
| Device dislodged or dislocated | 171 | 40.1% | 17% |
| Insufficient device problem information | 101 | 23.7% | 19.2% |
| Noise, audible | 9 | 2.1% | 1.4% |
| Naturally worn | 7 | 1.6% | 6.1% |
| Fracturea broken bone | 5 | 1.2% | 4.4% |
| Disassembly | 4 | 0.9% | 1.4% |
| Difficult to insertthe device was hard to insert | 2 | 0.5% | 1.2% |
| Material disintegration | 2 | 0.5% | 0.3% |
| Biocompatibility | 1 | 0.2% | 0.4% |
| Breakthe device broke | 1 | 0.2% | 1.6% |
| Loss of osseointegration | 1 | 0.2% | 4.5% |
| Unstable | 1 | 0.2% | 1.1% |
FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.
Patient problems coded
| Patient problem (FDA code) | Reports | Share |
|---|---|---|
| Joint dislocationa dislocated joint | 95 | 22.3% |
| Painpain, site not specified | 82 | 19.2% |
| Joint laxity | 22 | 5.2% |
| Discomfortdiscomfort | 13 | 3.1% |
| Falla fall | 9 | 2.1% |
| Host-tissue reaction | 9 | 2.1% |
| Limited mobility of the implanted joint | 9 | 2.1% |
| Not applicable | 9 | 2.1% |
| Foreign body reaction | 8 | 1.9% |
| Ambulation or postural difficulties | 7 | 1.6% |
| Osteolysis | 7 | 1.6% |
| Tissue damage | 7 | 1.6% |
| Appropriate clinical signs, symptoms and conditions term/code not available | 6 | 1.4% |
| Loss of range of motion | 6 | 1.4% |
| Fluid discharge | 4 | 0.9% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | Altrx +4 Neut 36idx54od | Product code LPH | All MAUDE reports |
|---|---|---|---|
| Reports | 426 | 90,251 | 26,136,888 |
| Share of that pool | — | 0.5% | 0% |
| Classified as death, per 1,000 reports | 0 | 2 | 9 |
| Classified as injury | 99.1% | 91.7% | 36.2% |
| Classified as malfunction | 0.9% | 7.5% | 62.3% |
| Filed by the manufacturer | 100% | 99.1% | 94.9% |
Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."
Other brands with product code LPH
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| Unknown Hip Acetabular Liners | 4,814 | 260 | 0.2% |
| Unknown Hip Acetabular Cup | 3,215 | 106 | 0.4% |
| Apex Hole Elim Positive Stop | 1,082 | 20 | 0.4% |
| Pinn Can Bone Screw 6 5mmx25mm | 1,299 | 32 | 0% |
| Unknown Hip Femoral Stem | 4,140 | 79 | 0.8% |
| Unknown Hip Femoral Head | 5,080 | 176 | 0.7% |
| Pinn Can Bone Screw 6 5mmx20mm | 1,075 | 19 | 0.3% |
| Pinn Can Bone Screw 6 5mmx30mm | 981 | 22 | 0.3% |
| Altrx Neut 36idx52od | 638 | 23 | 0% |
| UNK Hip Femoral Head Ceramic | 720 | 126 | 0.1% |
| Unknown Hip | 2,306 | 5 | 1.9% |
| Trident 0 X3 Insert 36mm Id | 585 | 0 | 0.2% |
| Altrx Neut 36idx54od | 553 | 23 | 0% |
| Altrx Neut 32idx50od | 552 | 21 | 0% |
| Altrx +4 10d 36idx52od | 544 | 17 | 0.2% |
Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."
Questions about Altrx +4 Neut 36idx54od reports
How many FDA reports name Altrx +4 Neut 36idx54od?
426 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 15 in the latest 12 months.
What kinds of events are reported?
injury (99.1%) and malfunction (0.9%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
device dislodged or dislocated (40.1%), insufficient device problem information (23.7%), noise, audible (2.1%), naturally worn (1.6%) and fracture (1.2%). These are FDA's device problem codes as entered on the report.
Who files these reports?
manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.
Do these reports show that Altrx +4 Neut 36idx54od was at fault?
No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."
How do I report a problem with a medical device?
Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.
Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.
Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.